Fluke MET/CAL Procedure ============================================================================= INSTRUMENT: HP 974A: CAL ADJ /5520 DATE: 08-Oct-97 AUTHOR: Fluke Corporation REVISION: $Revision: 1.1 $ ADJUSTMENT THRESHOLD: 70% NUMBER OF TESTS: 1 NUMBER OF LINES: 141 CONFIGURATION: Fluke 5520A ============================================================================= # # Compatibility: # 5500/CAL 5.0 or MET/CAL 5.0 or later. # # Subprocedures: # None # # Required Files: # 974adj.bmp # # System Specifications: # TUR calculation is based on specification interval of the accuracy file. # The default 5520A accuracy file contains 90 day specs. # # Fluke makes no warranty, expressed or implied, as to the fitness # or suitability of this procedure in the customer's application. # STEP FSC RANGE NOMINAL TOLERANCE MOD1 MOD2 3 4 CON 1.001 ASK- P J F W 1.002 ASK+ K X 1.003 HEAD PRELIMINARY INSTRUCTIONS 1.004 DISP Warm-up time: NONE 1.004 DISP Temperature: 23 +/-5 degC 1.004 DISP Humidity: <80% 1.005 DISP [32] WARNING 1.005 DISP HIGH VOLTAGE is used or exposed during the performance 1.005 DISP of this calibration. DEATH ON CONTACT may result if 1.005 DISP personnel fail to observe safety precautions. 1.006 DISP Turn the unit ON. 1.006 DISP 1.006 DISP Set the UUT Function to millivolts DC. 1.007 DISP Connect the 5520A to the UUT as follows: 1.007 DISP [32] 5520A NORMAL HI to UUT VOLT-OHM-DIODE 1.007 DISP [32] 5520A NORMAL LO to UUT COM 1.008 HEAD DC MILLIVOLT 1.009 5520 480.00mV S 2W 1.010 DISP ADJUST #1 (shown on following picture) 1.010 DISP for 480.00mV +/-2counts. 1.011 PIC 974adj 1.012 5520 * S 1.013 HEAD DC VOLTAGE 1.014 RNG 50V 1.015 5520 48.000V S 2W 1.016 DISP ADJUST #2 (shown on following picture) 1.016 DISP for 48.000V +/-2counts. 1.017 PIC 974adj 1.018 5520 * S 1.019 RNG 5V 1.020 5520 4.8000V S 2W 1.021 DISP ADJUST #3 (shown on following picture) 1.021 DISP for 4.8000V +/-2counts. 1.022 PIC 974adj 1.023 5520 * S 1.024 RNG 500V 1.025 5520 480.00V S 2W 1.026 DISP ADJUST #RV4 (shown on following picture) 1.026 DISP for 480.00V +/-2counts. 1.027 PIC 974adj 1.028 5520 * S 1.029 DISP Set UUT to the 1000V DC range. 1.030 RNG 1000V 1.031 DISP ADJUST #RV5 (shown on following picture) 1.031 DISP for 1000.0V +/-1count. 1.032 PIC 974adj 1.033 5520 * S 1.034 HEAD AC VOLTAGES 1.035 RNG 5V AC 1.036 5520 4.8000V 200H SI S 2W 1.037 DISP ADJUST #6 (shown on following picture) 1.037 DISP for 4.8000 +/-10counts. 1.038 PIC 974adj 1.039 5520 0.2500V 200H SI S 2W 1.040 DISP ADJUST #7 (shown on following picture) 1.040 DISP for 0.2500 +/-5counts. 1.041 PIC 974adj 1.042 5520 * S 1.043 OPBR The preceding 5V range adjustments (6&7) interact, so 1.043 OPBR if either of these has been adjusted the other 1.043 OPBR should be re-checked. 1.043 OPBR 1.043 OPBR Do you wish to RE-CHECK these adjustments? 1.044 JMPT 1.034 1.045 RNG 500mV AC 1.046 5520 480.00mV 200H SI S 2W 1.047 DISP ADJUST #8 (shown on following picture) 1.047 DISP for 480.00 +/-10counts. 1.048 PIC 974adj 1.049 5520 * S 1.050 RNG 500V AC 1.051 5520 480.00V 10kH SI S 2W 1.052 DISP ADJUST #C1 (shown on following picture) 1.052 DISP for 480.00 +/-20counts. 1.053 PIC 974adj 1.054 5520 * S 1.055 RNG 5V AC 1.056 5520 4.8000V 10kH SI S 2W 1.057 DISP ADJUST #C2 (shown on following picture) 1.057 DISP for 4.8000 +/-20counts. 1.058 PIC 974adj 1.059 5520 * S 1.060 DISP AC+DC VOLTAGES 1.061 RNG 50V 1.062 DISP 1.062 DISP Press the